gillon



No. 752,063. PATBNTED FEB. 16, 1904.

` E. Pg GILLQBLIv LOCK.

PPLIGTION EILBD 13210.31. 1902.

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PATBNTBD FEB. 16,k S1904.

Nm 752,063. I

^ 4E. P. GILLON.

LOCK.

APPLICATION FILED DEG. 31. 1902. N0 MODEL. 2 SHEETS-SHEET 2.

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` UNITED STATES.

Patented February 16, 1904.

.PATENT Orricn.

EDWARD F. GILLON, lOF W'AKEFIELD, MASSACHUSETTS, ASSIGNOR TO MILLER LOCK OOlNIPANY, OF PHILADELPHIA, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA. Y Y

LOCK.

SPECIFICATION forming part of Letters Patent No. 752,063, dated February 16, 1904.

l Application filed December 31, 1902. Serial No. 137,245. (No model.)

securing doors and other parts; and it has for its object to combine in a lock of simple construction means whereby the bolt may be held in projected position when the door is closed and in retracted position when the door is open, the bolt being shot into place by the operation of closing the door, such operation involving only the release of a catch and not a preliminary bodily retraction of the bolt effected by the keeper or striking plate acting against a bevel thereon.

My invent-ion also has for its object to simplify and improve the elements or subcombinations of a lock of this character; and to these ends it consists in certain novel features of construction and arrangement, whichI shall now proceed to describe and claim.

Of the accompanying drawings, Figure 1 represents a view of the inside of a door and jamb provided with a lock constructed in accordance with my invention. Fig. 2 represents a sectional view thereof taken immediately behind the front wall of the lock-casing. Fig. 3 represents a section on line 3 3 of Fig. 1. Fig. 4 represents a section on line'4 4 of Fig. '2. Fig. Y5 represents an end view of the lock. Fig. 6 represents a section on line 6'6 of Fig. 2. Fig. 7 represents a View similar to Fig. 4 with the bolt retraced by the knob or key-hub. Fig. 8 represents a view of the lock with its back plate removed and the bolt retracted as above. Fig. 9 represents a similar view with the bolt projected. Fig. 1() represents a view similar to Fig. 7 with the door closing. Fig. 11 represents a view similar to Fig. 3 with the bolt retracted; Fig. 12 represents a view similar to Figi 2, showing in operation the catch for holding the bolt permanently retracted. Figs. 13 and 14 represent detail perspective views of certainY parts hereinafter referred to. Fig. 15 represents a detail-perspective view of a bar for releasing the latch which locks the bolt in projected position. s

The-same reference characters indicate the same parts in all the gures.

' In the drawings, 2O is the ylock-casing on the door 21, and 22 is the striking-plate on the' ing an arm-plate 34, which is the counterpart I of the plate 30 and' acts in a similar manner against the rod-heads 32.

The bolt 24 is parallel-sided, not beveled on its end, as usual, and I thus obtain added strength in the bolt and cause it to always fill its aperture in the end plate 35 of the lockcasing. The shape of the` end of the bolt, however, is not material so long asit properly performs its locking function in coperation with the keeper 22.

36 is an L-shaped latch 4pivoted at 37 to the lock-casing alongside 'of the head of bolt 24 and having a notch'38, 'adaptedV to receive a pin 39` on the' bolt, and a spring 4Qformoving said notch in the direction of the pin.

' The outer end of the latch 36 has a bevel 41,

adapted to strike against the keeper 22 as the door closes. Assuming the bolt 24 to be retracted, as shown in Fig. 10, and so held by the lodgment of pijn 39 in notch 38, as the door closes" the bevel 41 strikes with acomparativelyfrictionless contact against thev` edge `of keeper 22 andcauses latch 3'6 tov Irelease key-hub 33 the 'latch 36 will yield on its pivot until the pin 39 enters notch 38. The bolt is then held retracted until a further actuation of the latch 36.

It will be observed that the edge of the keeper 22 exerts a cam action on the latch 36 as the door closes, moving said latch in such a position that when fully retracted it offers no obstruction to the further inward or closing'movement of the lock-casing, so that should the door be permitted by faulty construction or improper mounting of the lock-casing and keeper to close inwardly beyond a position in which the lock-casing is alined with the keeper io strain will thereby be brought upon the ook.

I further provide the lock with means constructed as follows for locking the bolt in projected position, and thereby preventing it from being retracted by the insertion of thinbladed instruments between thefdoor and jamb: The immediate means for so locking the bolt in projected position is a detent 42, whose locking end 43 resides behind a shoulder 44 on the head of the bolt 24 when the bolt is projected, the detent rocking on its corner against the abutment-plate 27 and being projected into locking position by the impingement of the springs 25 against the short arm 45 of the detent. rlhe detent has holes 46 46 to receive the rods 26, and thus hold said detent in its proper station. Whenever the bolt 24 is projected into'locking position, the detent 42 automatically falls into place behind the shoulder 44 on said bolt and locks the bolt against retraction. To move the detent out of bolt-locking position, there is provided a cam 47, which acts on the rear edge of an aperture 48 in the detent and is mounted on a rod 49, slidingly connected with the bolt 24 and having a plate 50 aixed to its rear end and abutted by the arms 32. It is evident that the detent 42 cannot be raised except when either the knob 29 or the key-hub 33 is rotated, for a rearward movement of the bolt produced by pressing inwardly on its outer end will merely cause the shoulder 44 to press against the end of the detent, there being sufficient lost motion between the bolt and the rod 49 to permit the rod to remain stationary without partaking of any slight movement of the bolt which may be thereby produced. When the knob 29 or key-hub 33 is rotated, its armplate 32, or 34 strikes the plate 50 and causes rod 49 and bolt 24 to be retracted. The cam 47 will raise detent 42, clear of shoulder 44 before the shoulder reaches it, and the bolt is therefore free to be retracted to its full extent.

5l is the usual snap-catch, operated by a small knob 52 on the outside of the lock-casing for engaging the bolt 24 when retracted and holding it permanently retracted.

I claim- 1. In a lock, the combination of a springprojected bolt, a manual retractor therefor, a locking member for holding the bolt in projected position, a device retracted with the bolt by the action of said manual retractor for retracting said locking member from boltlocking position and movable independently of the bolt and of the retractor, and mechanism automatically released by closing of the door for holding the bolt in retracted position.

2. In a lock, the combination of a springprojected bolt, a detent for locking the bolt in projected position, a cam device carried by and slidable on the bolt for retracting said detent, a manual retractor for operating said cam device and retracting the bolt, and mechanism automatically released by closing of the door for holding the bolt in retracted position.

3. In a lock, the combination of a bolt having guide-rods, a detent for locking said bolt in projected position, a cam rod slidingly mounted on said guide-rods and having a cam for retracting said detent, and manual operating means for simultaneously Yoperating on said guide-rods and cam-rod.

4. In a lock, the combination of a bolt having guide-rods, a detent held in position by said rods for locking the bolt in projected position, and means for manually retracting the bolt: l

5. In a lock, the combination of a bolt having guide-rods, a detent stationed by said rods for locking the bolt in projected position, springs surrounding said rods and acting oppositely on said bolt and detent, and means for manually retracting said bolt.

6. In a lock, the combination of a keeper, a lock-casing having an end face transverse to the plane of the door, a spring-projected bolt mounted to project from said end face, a latch pivoted to said lock-casing for locking said bolt in retracted position and mounted to project from said end face, the outer portion of the latch extending from the pivot in a direction toward the outer wall of the lock-casing and having an inclined edge to rideover the edge of the keeper, whereby said latch will be displaced by a cam action of the keeper thereon to a fully-retracted position, and means for manually retracting said bolt.

In testimony whereof I have affixed my signature in presence of two`witnes'ses.

EDWARD F. GILLON.

Witnesses:

E. BATCHELDER, C. F. BROWN. 

